41238765638 has 12 divisors (see below), whose sum is σ = 71957438172. Its totient is φ = 17673756660.

The previous prime is 41238765637. The next prime is 41238765641. The reversal of 41238765638 is 83656783214.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 41238765638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41238765637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210401768 + ... + 210401963.

It is an arithmetic number, because the mean of its divisors is an integer number (5996453181).

Almost surely, 2^41238765638 is an apocalyptic number.

41238765638 is a deficient number, since it is larger than the sum of its proper divisors (30718672534).

41238765638 is a wasteful number, since it uses less digits than its factorization.

41238765638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420803747 (or 420803740 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 53.

The spelling of 41238765638 in words is "forty-one billion, two hundred thirty-eight million, seven hundred sixty-five thousand, six hundred thirty-eight".